384 citations · 1.5k across the 46 of their papers we have counts for
46 papers
Polaronic mechanism of Nagaoka ferromagnetism in Hubbard models
Rhine Samajdar, R. N. Bhatt
The search for elusive Nagaoka-type ferromagnetism in the Hubbard model has recently enjoyed renewed attention with the advent of a variety of experimental platforms enabling its r…
Beyond universal behavior in the one-dimensional chain with random nearest neighbor hopping
Akshay Krishna, R. N. Bhatt
We study the one-dimensional nearest neighbor tight binding model of electrons with independently distributed random hopping and no on-site potential (i.e. off-diagonal disorder wi…
Floquet dynamics of disordered bands with isolated critical energies
Sriram Ganeshan, Kartiek Agarwal, R. N. Bhatt
We investigate the localization properties of driven models that exhibit a sub-extensive number of extended states in the static setting. We consider instances where the extended m…
Dimensional crossover of the integer quantum Hall plateau transition and disordered topological pumping
Matteo Ippoliti, R. N. Bhatt
We study the quantum Hall plateau transition on rectangular tori. As the aspect ratio of the torus is increased, the two-dimensional critical behavior, characterized by a subthermo…
Cooling arbitrary near-critical systems using hyperbolic quenches
Prahar Mitra, Matteo Ippoliti, R. N. Bhatt +2
We describe a quench protocol that allows the rapid preparation of ground states of arbitrary interacting conformal field theories in dimensions. We start from the ground sta…
Effect of Hilbert space truncation on Anderson localization
Akshay Krishna, R. N. Bhatt
The 1-D Anderson model possesses a completely localized spectrum of eigenstates for all values of the disorder. We consider the effect of projecting the Hamiltonian to a truncated…
Fast preparation of critical ground states using superluminal fronts
Kartiek Agarwal, R. N. Bhatt, S. L. Sondhi
We propose a spatio-temporal quench protocol that allows for the fast preparation of ground states of gapless models with Lorentz invariance. Assuming the system initially resides…
Disordered Quantum Spin Chains with Long-Range Antiferromagnetic Interactions
N. Moure, Hyun-Yong Lee, S. Haas +2
We investigate the magnetic susceptibility of quantum spin chains of spins with power-law long-range antiferromagnetic coupling as a function of their spatial decay…
Localization and transport in a strongly driven Anderson insulator
Kartiek Agarwal, Sriram Ganeshan, R. N. Bhatt
We study localization and charge dynamics in a monochromatically driven one-dimensional Anderson insulator focussing on the low-frequency, strong-driving regime. We study this prob…
Connection between Fermi contours of zero-field electrons and composite fermions in two-dimensional systems
Matteo Ippoliti, Scott D. Geraedts, R. N. Bhatt
We investigate the relation between the Fermi sea (FS) of zero-field carriers in two-dimensional systems and the FS of the corresponding composite fermions which emerge in a high m…
Numerical study of anisotropy in a composite Fermi liquid
Matteo Ippoliti, Scott D. Geraedts, R. N. Bhatt
We perform density-matrix renormalization group studies of a two-dimensional electron gas in a high magnetic field and with an anisotropic band mass. At half-filling in the lowest…
Absence of Many-Body Localization in a Single Landau Level
Scott D. Geraedts, R. N. Bhatt
The dynamics of the highly excited states of a system projected into a single Landau level are analyzed. An analysis of level spacing ratios for finite size systems shows a clear c…
Emergent local integrals of motion without a complete set of localized eigenstates
Scott D. Geraedts, R. N. Bhatt, Rahul Nandkishore
Systems where all energy eigenstates are localized are known to display an emergent local integrability, in the sense that one can construct an extensive number of operators that c…
Matrix-Product-State Algorithm for Finite Fractional Quantum Hall Systems
Zhao Liu, R. N. Bhatt
Exact diagonalization is a powerful tool to study fractional quantum Hall (FQH) systems. However, its capability is limited by the exponentially increasing computational cost. In o…
Characterization of quasiholes in fractional Chern insulators
Zhao Liu, R. N. Bhatt, Nicolas Regnault
We provide a detailed study of the Abelian quasiholes of bosonic fractional quantum Hall states on the torus geometry and in fractional Chern insulators. We find that the d…
Large Disorder Renormalization Group Study of the Anderson Model of Localization
Sonika Johri, R. N. Bhatt
We describe a large disorder renormalization group (LDRG) method for the Anderson model of localization in one dimension which decimates eigenstates based on the size of their wave…
Numerical Study of a Many-Body Localized System Coupled to a Bath
Sonika Johri, Rahul Nandkishore, R. N. Bhatt
We use exact diagonalization to study the breakdown of many-body localization in a strongly disordered and interacting system coupled to a thermalizing environment. We show that th…
Exchange coupling between silicon donors: the crucial role of the central cell and mass anisotropy
G. Pica, B. W. Lovett, R. N Bhatt +1
Donors in silicon are now demonstrated as one of the leading candidates for implementing qubits and quantum information processing. Single qubit operations, measurements and long c…
Quasiholes of 1/3 and 7/3 quantum Hall states: size estimates via exact diagonalization and density-matrix renormalization group
Sonika Johri, Zlatko Papić, R. N. Bhatt +1
We determine the size of the elementary quasihole in and quantum Hall states via exact-diagonalization and density-matrix renormalization group calculations on the…
Common path interference in Zener tunneling is a universal phenomenon
Sonika Johri, Rahul Nandkishore, R. N. Bhatt +1
We show that the probability of electric field induced interband tunneling in solid state systems is generically a non-monotonic (oscillatory) function of the applied field. This u…
Singular Behavior of Anderson Localized Wavefunctions for a Two-Site Model
S. Johri, R. N. Bhatt
We show analytically that the apparent non-analyticity discovered recently in the inverse participation ratio (IPR) of the eigenstates in Anderson's model of localization is also p…
"Rare" Fluctuation Effects in the Anderson Model of Localization
R. N. Bhatt, S. Johri
We discuss the role of rare fluctuation effects in quantum condensed matter systems. In particular, we present recent numerical results of the effect of resonant states in Anderson…
Band mass anisotropy and the intrinsic metric of fractional quantum Hall systems
Bo Yang, Z. Papić, E. H. Rezayi +2
It was recently pointed out that topological liquid phases arising in the fractional quantum Hall effect (FQHE) are not required to be rotationally invariant, as most variational w…
Stability of the k=3 Read-Rezayi state in chiral two-dimensional systems with tunable interactions
D. A. Abanin, Z. Papić, Y. Barlas +1
The k=3 Read-Rezayi (RR) parafermion quantum Hall state hosts non-Abelian excitations which provide a platform for the universal topological quantum computation. Although the RR st…